conf/testValidateValid.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
  A valid XML document according to its DTD.
-->
<!DOCTYPE database [
<!ELEMENT database (table+)>
<!ELEMENT table (name, fields)>

<!ELEMENT fields (field+)>
<!ELEMENT field (name, type)>

<!ELEMENT name (#PCDATA)>
<!ELEMENT type (#PCDATA)>
]>

<database>
  <table>
    <name>customers</name>
    <fields>
      <field>
        <name>custID</name>
        <type>java.lang.Long</type>
      </field>
      <field>
        <name>custName</name>
        <type>java.lang.String</type>
      </field>
    </fields>
  </table>
</database>